Pipe-joint.



G. R. MOKIBBEN- PIPE JOINT.

APPLICATION FILED NOV. 6, 1909.

Patented Oct. 4, 1910.

IINVENTOR C1 ATTORNEY 0W. I vw/W CHARLES R. MCKIBBEN, OF- PITTSBURG,PENNSYLVANIA.

v PIPE-JOINT.

Specification of Letters Patent.

Patented Oct. 4, 1910.

' Application filed November 6, 1909. Serial No. 526,539.

To all whom it may concern:

Be it known that I, CHARLES R. MCKIB- nnN, a citizen of the UnitedStates, residing at littsburg, in the county of Allegheny and State ofPennsylvania, have-invented or discovered new and useful Improvements inlllltmlllllliS, of which the following is a,

the joint, as in the ordinary autogenously welded joints.

Referring .to the accompanying drawing, in which I have shown myinvention applied to the welding of two tubular bodies at right anglesto each other, Figure l is a plan of a portion of the main tube as it isat the initial part of the processof making a joint;

Fig. 2, shows the side elevation, the next step in the said process;Fig. 3 is a-central vertical section of Fig. 2; Fig. 4, a verticalsection like 3 but withthe branch ipe seated on the main pipe and withone o the flanges of the latter bent down against the branch pipe; Fi 5is an elevation showing the assembled joint just previous to the weldingoperation; Fig. 6 is an elevation showing the welding completed; andFig. 7, a vertical section showing a portion of the welded oint.

On the drawing, 1 represents the main pipe to which the branch ipe 2 isto be welded. In the pipe 1, I orm the hole 3 with which the p1pe2 is toregister and cut a number of pairs of parallel slits 4 in the edge ofthe opening 3, providing the tongues, rests or lugs 5. I find four ofthese tongues arranged 90 apart to be satisfactory for most purposes butthe number and arrangement of the same may be varied. The metal betweensuccessive tongues is bent in any desired manner so as to projectoutwardly as shown in Fig. 3 forming the flanges 6 conccntric with whatwould be the axis of the pipe 2, if it were in place as shown in Fig. 4.The lower end of the pipe 2 is cut so as to conform to the shape of theopening within the flanges 6 and just above the tongues 5, as shown inFigs. 4 and 5. Preferably the lower end of the pip e 2 will be flared asshown in Figs. 4 and 7.

The metal about the opening 3 is heated before the flanges (i are formedin order to facilitate their formation. While the metal is still hot thepipe 2 is placed in position as shown in Figs. 4 and 5 and the flanges 6are then bent down against the side of the pipe 2, as shown in Fig. 5,and at the right-hand side of Fig. 4, the left-hand side thereof showingthe flange G asit is before it-is bent against the tube 2.

The metal of the flanges 6 and of the tube 2 above and between theflanges 6 and at the base of the tongues 5 is highly heated by blow-pipeflame or otherheat so as to bring the said metal to the point of fusion,at

which timemetal is melted by the flame and applied to the edges abovethe flanges 6 and between the'same so as to entirely weld the pipes 1and 2 together by their own and the added metal. Any method ofautogenous or other welding'may be used as I make no claim to theparticular manner in which the welding itself is accomplished.

My invention. is obviously not confined to the joining of two tubularbodies, as it may be applied to a plane and a tubular body or to twoplane bodies. The shape of the bodies joined is not essential as myinvention lies in the use of the tongues and flanges in connection withthe welding operation.

I claim. I

1. A joint com osed of two members arranged at an ange to each other,one member having tongues on which the other rests, and

a flange against which the face of the other I 3. A joint composed ofmain and branch flared and said members being welded totubular members,the main member having gether.

10 'tongues on Which the end of the' branch Signed atPittsburg, Pa.,this 25th day of member rests, and flanges between successive October,A. D-..1909.

5 tongues, arranged to surround and fit CHARLES R. McKIBBEN.

against the outer face of the said end of the Witnesses: branch member,said branch member having F. N. BARBER,

the end thereof next to the said tongues M. A. BARTH.

